Mold.



PATENTED MAR.10, 1908.

S. S. GHBZEM.

MOLD.

APPLICATION IILED JULY 27, 1907.

2 SHEETS-SHEET 1.

atmnug PATENTED MAR. 10, 1903. s. s. GHEZBM.

MOLD.

APPLICATION FILED JULY 27, 1907.

2 SHEETS-SHEET 2.

ethane;

. the mold cairn Specification of Letters Patent.

SAMUEL S. OHEZEM, OF TERRE HAUTE, INDIANA.

Patented March 10, 1908.

Application filed July 27, 1907. Serial No. 385,820.

To all 'Uf/LOH'L it may concern:

Be it known that I, SAMUEL S. CnEzEM, a citizen of the United States, residing at 'lerre llaute, in the county of Vigo and State of Indiana, have invented certain new and useful improvements in Molds, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in devices for use in molding sewers or conduits and the like of concrete or other plastic matter, and more particularly to a collapsible and portable frame for supporting plates or sections.

The ()bJOCt of the invention is to provide a supporting device of this character which may be quickly and easily set up for use in supportingthe mold sections and as readily collapsed to permit it to be removed from the finished arch or conduit, and which will be in the form of a portable truck so that it may be readily shifted to a-new position after it has been collapsed.

With the above and other objects in view the invention consists in the novel construction and the combination and arrangement of parts hereinafter described and claimed,

and illustrated in the ings in which Figure 1 is a perspectiye view of a portion of my improved molding device or truck; Fig. 2 is a central longitudinal section; ig. 3 is a longitudinal section, through one of the sides of the device; Figs. 4 and 5 are vertical transverse sections; Fig. 6 is a detailed erspective of a portion of one of the lock ars for the braces, and Fig. 7 is a similar view of a portion of one of the operating vbars for the slidable bearings.

My improved portable and collapsible mold support comprises two side members or beams 1 which are preferably hollow and adapted to, be supported upon rollers or wheels 2. The sides 1 are connected together and spaced apart by two 'or more transverse braces 3 the ends of which have a limited sliding engagement with said sides, as shown in Fig. 4. This connection consists in providing stop shoulders 4 formed by annular flanges arranged adjacent to the ends 5 of'said braces or rods, which ends project through and slide in openin s6 in the inner side walls of the side mem ers 1,

accompanying drawand by providing retaining headsorsto-ps 7" f upon the extremities of said' 'ends 5. This sliding connection between the sides and the braces permits the former to be moved inwardly upon the braces and toward each other for a purpose presently explained, and for the purpose of rigidly securing the sides to the braces when the sides are separated I provide a locking means consisting preferably of two operating rods 8 carrying a plurality of hook shaped projections 9 which are adapted to enter between the shoulders 4 and the inner faces of the sides 1 and thereby rigidly hold the latter upon the braces. These spacing projections or blocks 9 project laterally from the rods 8 and their reccssed or hook shaped edges 10 are slightly beveled so that they will readily enter between the shoulders 4 and the sides. The rods 8 extend longitudinally of and are mounted for sliding movement in suitable guides 11 upon the inner faces of said sides. Upon one or both of the ends of the lock operating rods 8 are right angularly bent portions 12 which serve as handles.

In order to move the sides 1 toward or from each other when they are unlocked, I provide two or more pairs of toggle levers 13. The levers of each pair are pivotally or hingedly connected at 14 and their outer ends are formed with T-shaped heads 15, which are pivoted in staples or other suitable bearings 16 upon the inner faces of the sides. These pairs of toggle levers are simultaneously actuated by an operating rod 17 which is connected to each of the lovers by fiexible or resilient fastenings 18 and which has upon one or both of its ends a cross bar 19 adapted to serve as a handle. It will be seen that when the toggle levers are straightened and in a transverse position at right angles to the sides they will hold the latter apart so that the braces may be locked by the projections or blocks 9, and that when the latter are removed from between the shoulders 4 and the sides 1 and the operating rod 17 is moved longitudinally to cause the toggle levers to assume angular positions the sides 1 will be drawn inwardly or together.

Connecting the upper portions of the two sides 1 at suitable intervals throughout their lengths are collapsible arches 20 adapted to support, when in their upright or extended position, longitudinally arranged mold plates or sections 21, as indicated in. dotted lines in Fig. 5, or a mold frame or casing,.of any other orrnarid construction? Each of the su porting arches 20 consists of two longitud nally curved sections 20 having their inner i 55 braces and t ends hingedly connected at22 and their outer ends formed with journals 23 1nounted for rotation in bearings 24 which are vertically.

slidable and adjustable in the sides 1. Each 5 of the bearings 24 has a body portion 25 and an. upper enlarged endor head apertured' to receive one of the journals 23. 'lhebody 25 of each of said bearings is vertically slid able' multaneously actuate the bearings 24 in a.

vertical-direction. The arches are'piv oted in' their bearings 24 so that=they may be swung downwardly. to collapse the mold and 25 they are adapted to be simultaneously lowered or raised by an operating rod which extends longitudinally beneath them and is connected to each of their sections 21 bya reflexibleyor resilient fastening 31. At one 30 or both ends of the operating rod 30 is arranged a cross bar handle 32.

' My improved mold supportmay be used for making sewers, bridges, arches, conduits and the like of plastic material, brickwork or masonry and in settin the same u for use the handle 19 is pu ed outwar y to 'str hten the toggle connections 13 and there y force the sides 1 apart. The handles 12 are then forced inwardly to cause the 40 looking. blocks or projections 9'to enter between the shoulders 4 on the braces and the inner faces of the sides to lock the sides in extended position. The'handles 29 are then moved inwardly to cause the wedge 27 to 45. elevate the bearings 24and the handle-32 is pulled outwardl to'elevate the arches. .The mold platesor oards 21 are then placed in position upon the arch. When it is desired to collapse-the device and shift it to another position, handles 29 are'pulled outwardly to allow thebearings 24 of the arches to lower, the handle 32 is then forced inwardly 'to swing the arches downwardly, the handles 12 are then ulled outwardly to unlock the lie handle 19 is forced inwardly to move the sides 1 together. The device then be moved upon its supporting wheels 2 out of the finished section of the arch or conduit and set up to-form the next section or a continuation of the same.

Having thus described my invention what I claim is: a 1. A" device of the comprising side members, means for moving c5 them toward and from-each other, and colv character described lapsible supporting arches pivoted to the side members to swing downwardly.

side members at opposite points, an operating rod connecting the inner ends of the toggle levers for simultaneous operation and co lapsiblesupporting arches plvoted to the side members to swing downwardly.

4. A device of the character described comprising side members, pairs of toggle levers having their inner ends hingedly connected and their outer ends pivoted to said members at opposite points, an operating rod connecting the inner ends of the toggle levers for simultaneous operation, collapsibleisupporting arches having their ends pivoted to the side members to swim r downwardly and mear'is 1 for simultaneous y swinging .said arches.

, 5. A device of the character described comprising side members movable toward and from each other, collapsible supporting arches having their ends pivoted upon said members to swing downwardly and means upon said members for raising and lowering the pivots of said arches.

61A device of the character described comprising side members movable toward and from each other, collapsible supporting arches between said. side members and having their ends pivoted to. permit them to be swung downwardly, means upon said side members for raising and lowering the pivoted ends of the arches and means for simultaneously swinging the arches.

7. A device of the character described comprising side members, means for moving them ward and from each other, bearings vertica y movable upon said side members, supporting arches having their ends pivoted '1n said bearings and each consisting of hingedly connected sections and means for simultaneously operating said arches, substantially as described.

8. A device of the character described comprising side members, means for moving them toward and from each other, bearings vertically movable'upon said side members, means for simultaneously moving the bearin s u on each of said side members and f0 dab e arches connecting said bearings, substantially as described.

9. A device of the character described comprising side members, means for moving them toward and from each other, bearings vertically movable upon said side members, slidable operating rods in said side members, wedges upon sald rods for actuating said bearings and foldable supporting arches connecting said bearings, substantially as de scribed.

10. A device of the character'described comprising side members, means for moving said members towardand from each other, braces connecting said members, the ends of said braces being slidably engaged with said members, means for locking said braces and side members rigidly together and mold supporting devices connecting said side members, substantially as described.

11. A device of the character describe comprising side members, means for moving the same toward and from each other, braces arranged between said side members and having their ends slidably engaged therewith,

stop shoulders upon said braces, operating rods slidable upon said'side members, projections upon said rods to enter between said stop shoulders and said side 'members and mold supporting devices connecting said side members, substantially as described.

12. A device of the character described comprising hollow side members, supporting wheels for the same, toggle levers connecting said members, a rod' for simultaneously operating said levers, braces slidably engaged with said side members, means for rigidly locking the side members and braces, bearings vertically slidable in said side members, operating rods in said side members for actuating said bearings, supporting arches ivoted in said bearings and consisting of hingedly connected sections, and means for simultaneously actuating said arches, substantially as described.

comprising side members, vertically movable bearings thereon, and supporting arches pivoted in said bearings and adapted to swing downwardly.

15. A device of the character described comprising side members, arches pivoted to said side members to swing downwardly, and means for simultaneously swinging said arches.

16. A device of the character described comprising side members, vertically movable bearings thereon, supporting arches between said'bearings, operating rods slidably mounted and Wedges carried by said rods and adapted to actuate said bearings.

In'testimony whereof I hereunto affix my signature in the presence of two witnesses.

SAMUEL S. CHEZEM.

Witnesses:

JAMES C. LEFoRoE, JOHN L. KETGHAM. 

